GCC Finishing Up C++17 Adjustments, Preparing For C++2A
Written by Michael Larabel in GNU on 15 September 2017 at 09:10 AM EDT. 31 Comments
GNU --
While C++17 was just formally approved days ago and is now waiting for ISO publication, GCC (and Clang) developers have largely finished up their C++17 (formerly known as "C++1z") support for some time. There are just a few lingering patches for GCC and already are beginning to lay the ground work for C++2a.

There's the longstanding GCC C++ status page where it does show all the major features of C++17/C++1z are complete in GCC 7. Red Hat's Jakub Jelinek sent out a patch this week with the final adjustments and now that C++1z is indeed going to be called C++17 officially.

Meanwhile, there's another patch for introducing -std=gnu++2a and -std=c++2a. This will be the next C++ standard, likely to be called C++20 as it is expected to arrive in the year 2020.

For C++20 it's anticipated to see introduced concepts, designated initializers, coroutines, modules, transactional memory, and reflection, among other language additions and improvements to the C++ standard library. As usual with most C++ revisions, expect to see these features added over the next few years in-step during the C++20/C++2a development.

Clang has also already been working on early changes for the next C++ standard with their C++17 support also into shape. Their current status can be found documented here.
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